Installing the impeller and clearance rings – Hale Q Series Muscle User Manual
Page 126
Repair and Corrective Maintenance
126
MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Installing the Impeller and Clearance Rings
Also see Figure 7-7: “Qmax / Qtwo Assembly Overview” on page 120.
1.
Install the pump body gaskets to the lower pump body, trimming as necessary.
2.
Install the impeller assembly into the lower pump housing, carefully aligning the
clearance ring lock notches with the clearance ring lock tabs in the lower pump
body.
Rotate the clearance rings to one side to align the lock notches with the lock tabs
in the upper pump body.
CAUTION!
FAILURE TO LINE UP THE CLEARANCE RING LOCK NOTCHES WITH THE PUMP BODY
TABS MAY RESULT IN PUMP DAMAGE AND PUMP FAILURE.
3.
Install the 1/2”-13 UNC x 1-3/4” screws through the rear bearing housing and the
seal housing. Do not tighten at this time.
4.
Install the 1/2”-13 UNC x 2” screws into the AutoLube housing and lower pump
body.
5.
Make sure the dowel pins are in the upper pump body to assist with alignment to
the lower pump body.
6.
Using proper lifting device, slowly raise the lower pump body and the impeller
assembly into place. Align the lower pump body aligns with the dowel pins and
the clearance ring notches with the clearance ring lock tabs in upper pump body.
(See Figure 7-7: “Qmax / Qtwo Assembly Overview,” on page 120.)
7.
Rotate the impeller shaft and check for free movement when the lower pump
body and the impeller assembly is in place.
8.
Apply Loctite and install the four 5/8”-11 UNC x 5” screws (one in each corner of
the lower pump body). Tighten snugly but do not fully torque.
9.
Apply Loctite and install the remaining 1/2”-13 UNC x 1-3/4” screws in the rear
bearing housing and mechanical seal housing, and the 1/2”-13 UNC x 2” screws
into the AutoLube. Tighten to 53 ft.-lbs. (72 N-m).
10. Remove the lifting device.
11. Torque the 5/8”-11 UNC x 5” screws to 150 ft.-lbs. (203 N-m), then, starting from
the center and moving outward, tighten and torque the lower pump body screws
to 65 ft.-lbs. (88 N-m).
12. Install the gearbox.
For G Series Gearbox, see heading “Installation - G Series” on page 112